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Cosmogenic Neutrinos from the propagation of Ultra High Energy Cosmic Rays

N.G. Busca 1 D. Allard 2 A. Olinto 1 M. Ave E. Parizot 1
2 APC - AHE - APC - Astrophysique des Hautes Energies
APC (UMR_7164) - AstroParticule et Cosmologie, Dipartimento di Astronomia, Universita degli Studi di Bologna
Abstract : We calculate the flux of neutrinos generated along the propagation of ultra-high energy nuclei over cosmological distances. The propagation takes into account the interactions with the cosmic background radiations including the CMB and the most recent estimates of higher energy (infra-red, optical, and ultra-violet) backgrounds. We assume that the composition of ultra-high energy cosmic rays (UHECRs) at the source is the same as the observed one at low energies. We find that the neutrino flux in the mixed case has a high energy peak, mainly due to photopion production off CMB photons, of similar shape and amplitude to the proton case. At low energies both composition cases have a significant neutrino flux that extends down to 1012 eV. Detection of diffuse neutrino fluxes at ultra high energies is within reach of present experiments.
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Contributor : Simone Lantz <>
Submitted on : Tuesday, September 11, 2007 - 4:07:49 PM
Last modification on : Friday, October 30, 2020 - 12:04:03 PM



N.G. Busca, D. Allard, A. Olinto, M. Ave, E. Parizot. Cosmogenic Neutrinos from the propagation of Ultra High Energy Cosmic Rays. 30th International Cosmic Ray Conference - ICRC'07, Jul 2007, Merida, Mexico. pp.1249-1252. ⟨in2p3-00171112⟩



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